Desert Power Wagons has put a price of $599,950 on Project Colossus, a six-wheeled pickup that wears vintage Dodge Power Wagon styling over a Ram TRX. Under the hood sits the supercharged 6.2-liter Hemi V8, tuned to a claimed 1,000 horsepower.
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The North Carolina builder listed the truck on Nov. 7 with 10,202 miles on the odometer. Used mileage at that price puts it in the same conversation as supercars, and the build is aimed at buyers who want a Power Wagon presence with TRX speed behind it.
A 2021 Ram 1500 TRX under the retro bodywork
The donor is a 2021 Ram 1500 TRX, according to Autoblog’s report on the listing. Tisdale Coachworks built the custom four-door crew cab and body, which borrows its look from the classic Dodge Power Wagon rather than from the current Ram lineup. Carscoops describes a Satin Charcoal finish, a steel front bumper with a heavy-duty winch and 38-inch Toyo Open Country R/T tires on Black Rhino wheels.
Inside, most of the hardware is still TRX, with the addition of Rich Pinecone distressed leather, a JL Audio sound system and a starlight headliner. Bilstein Black Hawk e2 active shocks carry over the idea of a truck that can run fast off pavement, though the stretched body changes how the weight is distributed. Wheelbase was not given in either report.
The 1,000-horsepower Hemi and the gain over stock
Power comes from the TRX’s supercharged 6.2-liter Hemi V8 with a National Speed Stage-3 package. Autoblog lists upgraded valve springs and pushrods, a 108 mm throttle body and Injector Dynamics ID1050x injectors, and puts the result near 1,000 horsepower. That is about 298 horsepower above the stock figure, a gain of roughly 40 percent over the 702 horsepower Ram quotes for the factory TRX.
Carscoops adds 925 pound-feet of torque against 650 stock, and notes the factory TorqueFlite 8HP95 eight-speed automatic stays in place with the TRX driving modes retained. The numbers are the builder’s claims, and neither outlet reports an independent dyno sheet or a timed run.
Desert Power Wagons and the six-wheel TRX field
Project Colossus is not the builder’s first retro-styled heavy truck. Mopar Insiders covered an earlier Desert Power Wagons creation on a Ram 4500 chassis cab, priced at $424,950, with a 6.7-liter Cummins turbodiesel rated above 420 horsepower and 1,075 pound-feet, a LiquidSpring suspension and a Tisdale Coachworks crew cab with rear-hinged doors. The pattern is consistent: modern Ram hardware, classic Power Wagon proportions, and a six-figure number well past what a stock truck commands.
The six-wheel TRX itself has precedent. Gear Patrol reported in 2020 that Hennessey would build only three Mammoth 6×6 trucks on the TRX, rated at 1,200 horsepower from a Hellephant crate engine and priced at $500,000 including the base pickup. Top Gear’s account matches, adding that the Hennessey conversion swapped in the 7.0-liter Hellephant, ran a bespoke interior with new bumpers and LED lights, and sold with shipping extra. Colossus claims less power than that program but asks more money, and it arrives as a finished, driven truck rather than an order slot.
Six-wheel drive at a $599,950 asking price
The third axle is the defining hardware, since it separates Colossus from other lifted and tuned TRX trucks. A full-time BorgWarner transfer case offers 6WD Auto, 6WD High and 6WD Low modes, and a Dana 60 rear axle with an electronically locking differential does the heavy work at the back. Autoblog points out that driving three axles can cost more fuel than a standard TRX, which already drinks heavily.
The asking price is the dealer’s number, not a sale. Nothing in the coverage shows a buyer, and a listing at $599,950 for a truck with a 2021 base vehicle invites a fair question about how much of that figure is conversion cost and how much is margin. No builder statement breaking down the build was published alongside it, and no named executive was quoted by either outlet.
Comparison shopping is limited. A buyer weighing Colossus against the 2020 Hennessey program is choosing between a smaller power claim at a higher price and a limited run of three that, by the reports available, was sold out of a phone-order window years ago. Wheelbase, curb weight and the conversion method for the third axle are the specifications a serious shopper would ask Desert Power Wagons for first, because none of them appears in the coverage.
What stays open is whether the market will pay anywhere near that figure. Custom six-wheel trucks have a small and unpredictable buyer pool, and the used mileage cuts both ways: it shows the conversion has been driven, which reassures some shoppers, while also meaning the truck is not new. The listing remains the only hard data point, and the sale price, if one is ever disclosed, will say more than the asking number.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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